Webbing clip



Unite rates Patent WEBBING CLIP Louis Fischer, Elmhurst, and Anton Schlussel, Bronx, N. Y.; said Fischer assignor to said Schlussel Application February 1, 1956, Serial No. 562,780

4 Claims. or. 24-84) This invention relates to clips for securing webbing, and particularly to a clip for fastening the ends of strips of webbing to tubes in making backs or seats for tubular aluminum furniture. The present invention is an improvement over the disclosure in our co-pending patent application, S. N. 504,659, filed April 28, 1955, now abandoned.

It has heretofore been known in the art to use clips of V-shape cross section squeezed on the end of webbing strips and having a hook for engagement in slots provided in the walls of aluminum tubes in making foldable lawn furniture. However, experience with such clips as are known in the prior art reveals drawbacks in that they do not properly grip certain kinds of webbing having strands of circular cross section.

Accordingly, it is an object of the present invention to provide a clip which overcomes the above drawbacks of prior art clips, but which can be as cheaply manufactured.

It is a further object of the invention to provide a clip which will be durable and which will not readily slip out of place when applied by means of an integral hook to a slot in a tubing frame.

It is a particularly important object of the present invention to provide a clip so constructed that it may be made from aluminum.

In attaining these objects we provide a metallic clip having a pair of angularly related integral flanges which can be bent toward each other to clip the end of a webbing strip therebetween. One of these flanges is provided with a plurality of elongated dimples or ridges which project toward respective perforations of corresponding shape in the other flange. The arrangement is such that the ridges register with the perforations when the flanges are squeezed together so as to bulbously distort the web material along elongated lines and into respective perforations. This permanently locks the web to the clips regardless of the matereial of the web. We have found after exhaustive testing with particularly heavy stresses over a period of time that the use of elongated ridges rather than round dimples as shown in our previously filed application is a distinct improvement. At a matter of fact, a surprising result was revealed in the course of experiments and testing in the sense that clips following the teachings of the present disclosure may be made from aluminum and yet will hold with safety. Prior to this discovery all such clips were neces sarily made from steel which is heavier and stronger than aluminum and which material was quite suitable with the structure shown in our prior application. However, there are distinct advantages in using aluminum rather than steel. Firstly, there is no electrolytic action set up when aluminum clips are placed contiguous with aluminum tubing in the making of tubular furniture. Steel clips have an electrolytic action which causes corrosion unless such clips are well plated.

Secondly, aluminum is easier to work, thereby efiecting a saving in die cost.

Thirdly, aluminum is lighter, thereby effecting a saving in handling and shipping costs.

A detailed description of our invention will now be given in conjunction with the appended drawing in which:

Fig. 1 is a perspective of the device prior to being applied to a webbing strip.

Fig. 2 is a section through 2-2 of Fig. 1.

Fig. 3 is a front elevation.

Fig. 4 is a perspective showing the clip as applied to a webbing strip and ready to be applied to a tubing frame.

Fig. 5 is a section through a piece of tubing showing the clip of Fig. 4, as it appears when applied to a tubing frame.

With reference to the drawing, our improved clip comprises an integral angle of aluminum having flanges 10 and 12 joined in a bend line 16. Flange 10 is provided with two elongated perforations 18 which extend for a substantial distance on each half of the length of the clip, such distance being made as long as practical, consistent with leaving a suitable width of web at 22 at each end of the flange 10 and web 24 intermediate the slots and extending to a central slot 26 from which has been struck a hook 28 to be subsequently described. In

an actual commercial embodiment the length of the slots 18 is between three and four times the width of any web 22 or 24. The flange 12 has stamped therefrom a pair of ridges or elongated dimples 30 so aligned with respect to perforations 18 that when the clip is applied to a webbing strap 34 as shown in Figs. 4 and 5 the ridges 30 protrude into the slots 18 and securely lock elongated areas of the webbing strap therein. The

ridges as clearly disclosed on the drawing are generally rigid, bulbous formations having linear crests and are substantially incompressible in application to a strap and as clinched thereon.

We believe that an important aspect of our construction which gives us the surprising locking results obtained resides in the use of closed slots such as 18, the rounded closure edges 36 being clearly evident on Fig. 3. Apparently the effect of the closed slot is to grip and deform the webbing longitudinally of the clip while stretching the webbing latitudinally, that is, along the long edge of the ridge. This produces a peculiarly effective type of grip in that even under stress far in excess of that normally encountered in use, the flanges 1t) and 12 would not be spread apart so as to release the web. It is further our theory that the fibers of the web are compressed against the edges of the slot and provide a locking elfect by compression and indentation of the fibers contiguous with the slot edges.

The effect of the above construction as described is considerably superior to other arrangements which have been tried and marketed and although no microscopic examination has been made of the exact effect on the webbing strap produced by our novel coaction of elongated ridges and slots, rigid tests under working conditions leave no room for doubt as to the peculiarly increased holding power of the arrangement. As stated hereinabove, a very important advantage is obtained in that we are enabled to manufacture clips of aluminum Patented Aug. 5, 1958' to prevent straightening. out of the book under load in the event theclip was madeof aluminum. We now find, in view of the present novel structure for the Web, that the mode of constructing the hook with a reinforcing rib 3 8 is of considerable importance, for obviously if the hook had any tendency, to straighten out thepurpose of; the (hook; wouldxhe defeated. While there is a distinct possibilitythat certain types of hard. and.

expensiye aluminum could be utilized for our clip wherein the hoohwould-not;straighten out even though not provided; with a rib,,it should be apparentthat the provision of the rib enables us to use soften and cheaper aluminum, thereby elfecting a saving ,in material as well as in machining operations. Accordinglm we regard the novel structure of the hook as beinga highly desirable feature to be usedin conjunctionwith the presently disclosed Web rippin e eme s- Furthelyas disclosed in our prion application, a dimple 40 is disposed at the end of the hook to serve as a lock to prevent the hook fromsliding out of the tubing slot 44.

In conclusion, we are aware .that various modifications may be made without departing from the spirit of our. invention andaccordingly We do not seek to be limitedto the precise illustration herein given except as set forthin the appended. claims.

We claim:

1. A clip for securing webbing comprisingapair-of angnlarly related flanges joined at a bend line andbendable at that line to permanently and non-deta'chably engagewebbing placed between said flanges, one of said flanges being provided with apair of elongated slots, the other of said flanges being provided with a pair of ridgesistamped therefrom and co-acting with respective slotsto defineelongated clinching areas for permanently and deforminglyclinchingelongated areas of saidwebbingx therein, said clip being provided with a hook for insertionin a slit through the side of a tube, said hook being struck from the'material of one of said flanges,

Y 4 said ridges being bulbous and having closed sides and beingsubstantially non-compressible and having elongate linear crests, said hook being disposed intermediate the elongated clinching areas, the direction of elongation of the slots and ridges being substantially parallel to the bend line.

2. A clip as set forth in claim 1, the material thereof being sheet aluminum.

3. A clip as set forth in claim 1, said slots and ridges having symmetrically registerable, circular ends.

4. A clipas set forth in claim 3, the material of said clip being sheet. aluminum.

ReferencesCited in the file of this patent UNITEDSTATES PATENTS 564,573 Hartshorn July 21, 1896 882,708 Mund Mar. 24, 1908 1,155,072 Kops Sept. 28, 1915 1,260,438 Orewiler Mar. 26, 1918 1,412,088 Papini -1 Apr: 11, 1922 1,420,812 Browne; June 27, 1922- 1,455,302 Naberst; May 15, 1923 1,687,361- Carrollet a1. Oct. 9, 1928 1,713,633 Waream May 21, 1929' 1,881,654 Kastner Oct. 11, 1932 1,897t333"' Ressigueae Feb. 14, 1933 l,964;-8 17: Hanney July 13, 1934 1,984,856 Anderson Dec. 18, 1934 2,215,139. Uhlmann- Sept. 17, 1940 2,266,466 Lindner Dec. 16, 1941 2,444,873.v Goldberg July 6, 1948 2,586,262. Robins; Feb. 19, 1952 2,603,848 Dovica July'22, 1 952.

FOREIGN PATENTS 2,039,, Great Britain 1903 124,088 Australia Apr. 11, 1947 713,658 France Aug. 17, 1931 

